harder than a cats 

Anything that is really, really hard. Like a cats head

Hey, Jiggy. Your boner seems really hard. Hard, like harder than a cats head!
I know. Thanks

harder than a cats by Pipksi September 16, 2013

Harder than a cats head

A phrase created by emergency services personnel who were trying to euthanaise a cat. The cats head was found to be incredibly strong. It is know used to describe anything especially strong. Often used to describe an erection. Now frequently used by TV commentators when calling AFL games.

Hey jonesy did you see that hot chick?
Yes, she got me harder than a cats head
diamond hard on erection

Harder than a cats head by Pipksi September 16, 2013